code: def test_one_image_peak():
      """Test reconstruction with one peak pixel"""
      image = np.ones((5, 5))
      image[2, 2] = 2
      mask = np.ones((5, 5)) * 3
      assert_array_almost_equal(reconstruction(image, mask), 2)
  
file_path: scikit-image/skimage/morphology/tests/test_reconstruction.py
imports: import math
  import numpy
  import pytest
  from numpy.testing import assert_array_almost_equal
  from skimage._shared.utils import _supported_float_type
  from skimage.morphology.grayreconstruct import reconstruction
label_desc: Use image node_id 4 for calling a global function with example usage: test_one_image_peak() without return types